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<!doctype html><html lang="en"> <head> <meta content="text/html; charset=utf-8" http-equiv="Content-Type"> <title>CSS Shapes Module Level 2</title> <meta content="width=device-width, initial-scale=1, shrink-to-fit=no" name="viewport"> <meta content="exploring" name="csswg-work-status"> <meta content="ED" name="w3c-status"> <meta content="This draft contains the features of CSS relating to wrapping content around and inside shapes. It (implicitly for now) includes and extends the functionality of CSS Shapes Level 1 [[CSS-SHAPES]]. The main points of extension compared to level 1 include additional ways of defining shapes, defining an exclusion area using a shape, and restricting an element's content area using a shape." name="abstract"> <link href="../default.css" rel="stylesheet" type="text/css"> <link href="../csslogo.ico" rel="shortcut icon" type="image/x-icon"> <style> body { background: url("https://www.w3.org/StyleSheets/TR/logo-ED") top left no-repeat; }; </style> <meta content="Bikeshed version 10a84c7e618548fadb9b1bc7d931fa46350466af" name="generator"> <link href="https://www.w3.org/TR/css-shapes-2/" rel="canonical"> <style type="text/css"> .singleImgExample { display: block; margin: auto; } .example-table { table-layout: fixed; width: 100%; } .example-table tr td img { width: 90%; } </style> <style>/* style-md-lists */ /* This is a weird hack for me not yet following the commonmark spec regarding paragraph and lists. */ [data-md] > :first-child { margin-top: 0; } [data-md] > :last-child { margin-bottom: 0; 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} [data-link-type="property"]::after, [data-link-type="propdesc"]::after, [data-link-type="descriptor"]::after, [data-link-type="value"]::after, [data-link-type="function"]::after, [data-link-type="at-rule"]::after, [data-link-type="selector"]::after, [data-link-type="maybe"]::after { content: "’"; } [data-link-type].production::before, [data-link-type].production::after, .prod [data-link-type]::before, .prod [data-link-type]::after { content: ""; } [data-link-type=element], [data-link-type=element-attr] { font-family: Menlo, Consolas, "DejaVu Sans Mono", monospace; font-size: .9em; } [data-link-type=element]::before { content: "<" } [data-link-type=element]::after { content: ">" } [data-link-type=biblio] { white-space: pre; }</style> <style type='text/css'></style><body class="h-entry"> <div class="head"> <p data-fill-with="logo"><a class="logo" href="https://www.w3.org/"> <img alt="W3C" height="48" src="https://www.w3.org/StyleSheets/TR/2016/logos/W3C" width="72"> </a> </p> <h1 class="p-name no-ref" id="title">CSS Shapes Module Level 2</h1> <h2 class="no-num no-toc no-ref heading settled" id="subtitle"><span class="content">Editor’s Draft, <time class="dt-updated" datetime="2017-10-25">25 October 2017</time></span></h2> <details> <summary>Specification Metadata</summary> <div data-fill-with="spec-metadata"> <dl> <dt>This version: <dd><a class="u-url" href="https://drafts.csswg.org/css-shapes-2/">https://drafts.csswg.org/css-shapes-2/</a> <dt>Latest published version: <dd><a href="https://www.w3.org/TR/css-shapes-2/">https://www.w3.org/TR/css-shapes-2/</a> <dt>Issue Tracking: <dd><a href="#issues-index">Inline In Spec</a> <dd><a href="https://github.com/w3c/csswg-drafts/labels/css-shapes-2">GitHub Issues</a> <dt class="editor">Editors: <dd class="editor p-author h-card vcard"><a class="p-name fn u-email email" href="mailto:ratan@microsoft.com">Rossen Atanassov</a> (<span class="p-org org">Microsoft Corporation</span>) <dd class="editor p-author h-card vcard"><a class="p-name fn u-email email" href="mailto:stearns@adobe.com">Alan Stearns</a> (<span class="p-org org">Adobe Systems, Inc.</span>) <dt>Issues list: <dd><a href="https://www.w3.org/Bugs/Public/buglist.cgi?query_format=advanced&product=CSS&component=Shapes&resolution=---&cmdtype=doit">In Bugzilla</a> </dl> </div> </details> <div data-fill-with="warning"></div> <p class="copyright" data-fill-with="copyright"><a href="http://www.w3.org/Consortium/Legal/ipr-notice#Copyright">Copyright</a> © 2017 <a href="http://www.w3.org/"><abbr title="World Wide Web Consortium">W3C</abbr></a><sup>®</sup> (<a href="http://www.csail.mit.edu/"><abbr title="Massachusetts Institute of Technology">MIT</abbr></a>, <a href="http://www.ercim.eu/"><abbr title="European Research Consortium for Informatics and Mathematics">ERCIM</abbr></a>, <a href="http://www.keio.ac.jp/">Keio</a>, <a href="http://ev.buaa.edu.cn/">Beihang</a>). W3C <a href="http://www.w3.org/Consortium/Legal/ipr-notice#Legal_Disclaimer">liability</a>, <a href="http://www.w3.org/Consortium/Legal/ipr-notice#W3C_Trademarks">trademark</a> and <a href="http://www.w3.org/Consortium/Legal/2015/copyright-software-and-document">permissive document license</a> rules apply. </p> <hr title="Separator for header"> </div> <div class="p-summary" data-fill-with="abstract"> <h2 class="no-num no-toc no-ref heading settled" id="abstract"><span class="content">Abstract</span></h2> <p>This draft contains the features of CSS relating to wrapping content around and inside shapes. It (implicitly for now) includes and extends the functionality of CSS Shapes Level 1 <a data-link-type="biblio" href="#biblio-css-shapes">[CSS-SHAPES]</a>. The main points of extension compared to level 1 include additional ways of defining shapes, defining an exclusion area using a shape, and restricting an element’s content area using a shape.</p> <a href="http://www.w3.org/TR/CSS/">CSS</a> is a language for describing the rendering of structured documents (such as HTML and XML) on screen, on paper, in speech, etc. </div> <h2 class="no-num no-toc no-ref heading settled" id="status"><span class="content">Status of this document</span></h2> <div data-fill-with="status"> <p> This is a public copy of the editors’ draft. It is provided for discussion only and may change at any moment. Its publication here does not imply endorsement of its contents by W3C. Don’t cite this document other than as work in progress. </p> <p> <a href="https://github.com/w3c/csswg-drafts/issues">GitHub Issues</a> are preferred for discussion of this specification. When filing an issue, please put the text “css-shapes” in the title, preferably like this: “[css-shapes] <i>…summary of comment…</i>”. All issues and comments are <a href="https://lists.w3.org/Archives/Public/public-css-archive/">archived</a>, and there is also a <a href="https://lists.w3.org/Archives/Public/www-style/">historical archive</a>. </p> <p> This document was produced by the <a href="https://www.w3.org/Style/CSS/members">CSS Working Group</a> (part of the <a href="https://www.w3.org/Style/">Style Activity</a>). </p> <p> This document was produced by a group operating under the <a href="https://www.w3.org/Consortium/Patent-Policy-20040205/">5 February 2004 W3C Patent Policy</a>. W3C maintains a <a href="https://www.w3.org/2004/01/pp-impl/32061/status" rel="disclosure">public list of any patent disclosures</a> made in connection with the deliverables of the group; that page also includes instructions for disclosing a patent. An individual who has actual knowledge of a patent which the individual believes contains <a href="https://www.w3.org/Consortium/Patent-Policy-20040205/#def-essential">Essential Claim(s)</a> must disclose the information in accordance with <a href="https://www.w3.org/Consortium/Patent-Policy-20040205/#sec-Disclosure">section 6 of the W3C Patent Policy</a>. </p> <p> This document is governed by the <a href="https://www.w3.org/2017/Process-20170301/" id="w3c_process_revision">1 March 2017 W3C Process Document</a>. </p> <p></p> </div> <div data-fill-with="at-risk"></div> <nav data-fill-with="table-of-contents" id="toc"> <h2 class="no-num no-toc no-ref" id="contents">Table of Contents</h2> <ol class="toc" role="directory"> <li><a href="#intro"><span class="secno">1</span> <span class="content"> Introduction</span></a> <li><a href="#terminology"><span class="secno">2</span> <span class="content"> Terminology</span></a> <li><a href="#shapes"><span class="secno">3</span> <span class="content"> Shapes</span></a> <li> <a href="#basic-shape-functions"><span class="secno">4</span> <span class="content"> Basic Shapes</span></a> <ol class="toc"> <li><a href="#supported-basic-shapes"><span class="secno">4.1</span> <span class="content"> Supported Shapes</span></a> </ol> <li><a href="#referencing-svg-shapes"><span class="secno">5</span> <span class="content"> Referencing SVG shapes</span></a> <li><a href="#shapes-from-image"><span class="secno">6</span> <span class="content"> Shapes from Image</span></a> <li><a href="#shapes-from-box-values"><span class="secno">7</span> <span class="content"> Shapes from Box Values</span></a> <li> <a href="#declaring-shapes"><span class="secno">8</span> <span class="content"> Declaring Shapes</span></a> <ol class="toc"> <li><a href="#shape-outside-property"><span class="secno">8.1</span> <span class="content"> The <span class="property">shape-outside</span> Property</span></a> <li><a href="#shape-inside-property"><span class="secno">8.2</span> <span class="content"> The <span class="property">shape-inside</span> Property</span></a> <li><a href="#shape-image-threshold-property"><span class="secno">8.3</span> <span class="content"> The shape-image-threshold Property</span></a> <li><a href="#shape-image-source-type-property"><span class="secno">8.4</span> <span class="content"> The shape-image-source-type Property</span></a> <li><a href="#shape-margin-property"><span class="secno">8.5</span> <span class="content"> The <span class="property">shape-margin</span> property</span></a> <li><a href="#shape-padding-property"><span class="secno">8.6</span> <span class="content"> The <span class="property">shape-padding</span> Property</span></a> </ol> <li> <a href="#conformance"><span class="secno"></span> <span class="content"> Conformance</span></a> <ol class="toc"> <li><a href="#document-conventions"><span class="secno"></span> <span class="content"> Document conventions</span></a> <li><a href="#conform-classes"><span class="secno"></span> <span class="content"> Conformance classes</span></a> <li> <a href="#conform-responsible"><span class="secno"></span> <span class="content"> Requirements for Responsible Implementation of CSS</span></a> <ol class="toc"> <li><a href="#conform-partial"><span class="secno"></span> <span class="content"> Partial Implementations</span></a> <li><a href="#conform-future-proofing"><span class="secno"></span> <span class="content"> Implementations of Unstable and Proprietary Features</span></a> <li><a href="#conform-testing"><span class="secno"></span> <span class="content"> Implementations of CR-level Features</span></a> </ol> </ol> <li> <a href="#index"><span class="secno"></span> <span class="content">Index</span></a> <ol class="toc"> <li><a href="#index-defined-here"><span class="secno"></span> <span class="content">Terms defined by this specification</span></a> <li><a href="#index-defined-elsewhere"><span class="secno"></span> <span class="content">Terms defined by reference</span></a> </ol> <li> <a href="#references"><span class="secno"></span> <span class="content">References</span></a> <ol class="toc"> <li><a href="#normative"><span class="secno"></span> <span class="content">Normative References</span></a> </ol> <li><a href="#property-index"><span class="secno"></span> <span class="content">Property Index</span></a> <li><a href="#issues-index"><span class="secno"></span> <span class="content">Issues Index</span></a> </ol> </nav> <main> <h2 class="heading settled" data-level="1" id="intro"><span class="secno">1. </span><span class="content"> Introduction</span><a class="self-link" href="#intro"></a></h2> <p><em>This section is not normative.</em></p> <p>Level 1 of this specification defined properties to control the geometry of an element’s <span>float area</span>. This level defines how shapes apply to exclusions. It also includes a <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside">shape-inside</a> property for applying a shape to an element’s content area. And finally it defines new ways of specifying shapes for all of these applications.</p> <h2 class="heading settled" data-level="2" id="terminology"><span class="secno">2. </span><span class="content"> Terminology</span><a class="self-link" href="#terminology"></a></h2> <p><dfn data-dfn-type="dfn" data-noexport="" id="exclusion-area">Exclusion area<a class="self-link" href="#exclusion-area"></a></dfn></p> <p>The area used for excluding inline flow content around an exclusion box. The <span>exclusion area</span> is equivalent to the <a href="https://www.w3.org/TR/CSS2/box.html#box-dimensions">border box</a> for an exclusion box. This specification’s <a class="property" data-link-type="propdesc" href="https://drafts.csswg.org/css-shapes-1/#propdef-shape-outside" id="ref-for-propdef-shape-outside">shape-outside</a> property can be used to define arbitrary, non-rectangular <span>exclusion areas</span>. The <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside①">shape-inside</a> property also defines an <span>exclusion area</span>, but in this case it is the area outside the shape that inline content avoids.</p> <p><dfn data-dfn-type="dfn" data-noexport="" id="float-area">Float area<a class="self-link" href="#float-area"></a></dfn></p> <p>The area used for wrapping content around a float element. By default, the float area is the float element’s <a href="https://www.w3.org/TR/CSS2/box.html#box-dimensions">margin box</a>. This specification’s <a class="property" data-link-type="propdesc" href="https://drafts.csswg.org/css-shapes-1/#propdef-shape-outside" id="ref-for-propdef-shape-outside①">shape-outside</a> property can be used to define arbitrary, non-rectangular float areas.</p> <p><dfn data-dfn-type="dfn" data-noexport="" id="content-area">Content area<a class="self-link" href="#content-area"></a></dfn></p> <p>The <a href="https://www.w3.org/TR/CSS2/box.html#box-dimensions">content area</a> is normally used for layout of the inline flow content of a box.</p> <div class="issue-marker" data-bug_id="15089" data-bug_status="NEW"> <a href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=15089">Issue-15089</a> <div class="issue-details"> <p class="short-desc">shrink-to-fit circle / shape</p> </div> </div> <h2 class="heading settled" data-level="3" id="shapes"><span class="secno">3. </span><span class="content"> Shapes</span><a class="self-link" href="#shapes"></a></h2> <p>Shapes define arbitrary geometric contours around which inline content flows. The shape-outside property defines the <span>float area</span> for a float, and the exclusion area for an exclusion.</p> <h2 class="heading settled" data-level="4" id="basic-shape-functions"><span class="secno">4. </span><span class="content"> Basic Shapes</span><a class="self-link" href="#basic-shape-functions"></a></h2> <p>Add the final <a href="https://www.w3.org/TR/css-shapes/#basic-shape-functions">level 1</a> section.</p> <h3 class="heading settled" data-level="4.1" id="supported-basic-shapes"><span class="secno">4.1. </span><span class="content"> Supported Shapes</span><a class="self-link" href="#supported-basic-shapes"></a></h3> <p>Add the final <a href="https://www.w3.org/TR/css-shapes/#basic-shape-functions">level 1</a> section, with the following integrated.</p> <dl> <dt><dfn class="css" data-dfn-type="function" data-export="" id="funcdef-path">path()<a class="self-link" href="#funcdef-path"></a></dfn> = path( [<a class="production css" data-link-type="type" href="#typedef-fill-rule" id="ref-for-typedef-fill-rule"><fill-rule></a>,]? <a class="production css" data-link-type="type" href="https://drafts.csswg.org/css-values-3/#string-value" id="ref-for-string-value"><string></a> ) <dd> <ul> <li> <dfn class="dfn-paneled css" data-dfn-type="type" data-export="" id="typedef-fill-rule"><a class="production css" data-link-type="type" href="#typedef-fill-rule" id="ref-for-typedef-fill-rule①"><fill-rule></a></dfn> - The filling rule used to determine the interior of the path. See <a href="https://www.w3.org/TR/SVG/painting.html#FillRuleProperty">fill-rule</a> property in SVG for details. Possible values are <a class="css" data-link-type="maybe" href="https://drafts.fxtf.org/fill-stroke-3/#valdef-fill-rule-nonzero" id="ref-for-valdef-fill-rule-nonzero">nonzero</a> or <a class="css" data-link-type="maybe" href="https://drafts.fxtf.org/fill-stroke-3/#valdef-fill-rule-evenodd" id="ref-for-valdef-fill-rule-evenodd">evenodd</a>. Default value when omitted is <a class="css" data-link-type="maybe" href="https://drafts.fxtf.org/fill-stroke-3/#valdef-fill-rule-nonzero" id="ref-for-valdef-fill-rule-nonzero①">nonzero</a>. <li> The <string> represents an <a href="https://www.w3.org/TR/SVG11/paths.html#PathData">SVG Path data string</a>. The path data string must be conform to the grammar and parsing rules of SVG 1.1. The initial position is defined by the first “move to” argument in the path string. For the initial direction follow SVG 1.1. </string> </ul> </dl> <div class="issue-marker wrapper"> <div class="issue-marker" data-bug_id="16448" data-bug_status="ASSIGNED"> <a href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=16448">Issue-16448</a> <div class="issue-details"> <p class="short-desc">Should we revisit the decision to not allow SVG path syntax in the shape-inside, shape-outside properties</p> </div> </div> </div> <h2 class="heading settled" data-level="5" id="referencing-svg-shapes"><span class="secno">5. </span><span class="content"> Referencing SVG shapes</span><a class="self-link" href="#referencing-svg-shapes"></a></h2> <p>An SVG shape can be referenced using the <code>url()</code> syntax. The shape can be any of the <a href="https://www.w3.org/TR/SVG/shapes.html">SVG basic shapes</a> or a <a href="https://www.w3.org/TR/SVG/paths.html">path element</a>.</p> <div class="example" id="example-dc6c340d"> <a class="self-link" href="#example-dc6c340d"></a> <div style="float:right"> <img alt="results of referencing SVG shapes" src="images/svg-shape-reference.png"> </div> <code class="html"><pre><style> div { height: 400px; width: 400px; } .in-a-circle { shape-outside: url(#circle_shape); } <p>.in-a-path { shape-outside: url(#path-shape); }</p> <p></style></p> <p><svg ...> <circle id="circle_shape" cx="50%" cy="50%" r="50%" /> <path id="path-shape" d="M 100 100 L 300 100 L 200 300 z" /> </svg></p> <p><div class="around-a-circle">...</div> <div class="around-a-path">...</div></p> </pre></code> </div> <h2 class="heading settled" data-level="6" id="shapes-from-image"><span class="secno">6. </span><span class="content"> Shapes from Image</span><a class="self-link" href="#shapes-from-image"></a></h2> <p>Add the final <a href="https://www.w3.org/TR/css-shapes/#shapes-from-image">level 1</a> section.</p> <p class="issue" id="issue-d7f8356c"><a class="self-link" href="#issue-d7f8356c"></a> One <a href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=16716">suggestion</a> is to define a shape based on an element’s rendered content. This could have security implications.</p> <p class="issue" id="issue-aa32ab08"><a class="self-link" href="#issue-aa32ab08"></a> Another <a href="http://lists.w3.org/Archives/Public/www-style/2014Mar/0120.html">suggestion</a> is to add something to an image() function that determines the relevant pixels to use (both for defining a shape and for display).</p> <h2 class="heading settled" data-level="7" id="shapes-from-box-values"><span class="secno">7. </span><span class="content"> Shapes from Box Values</span><a class="self-link" href="#shapes-from-box-values"></a></h2> <p>Add the final <a href="https://www.w3.org/TR/css-shapes/#shapes-from-box-values">level 1</a> section.</p> <h2 class="heading settled" data-level="8" id="declaring-shapes"><span class="secno">8. </span><span class="content"> Declaring Shapes</span><a class="self-link" href="#declaring-shapes"></a></h2> <p>A shape can be declared with the <a class="property" data-link-type="propdesc" href="https://drafts.csswg.org/css-shapes-1/#propdef-shape-outside" id="ref-for-propdef-shape-outside②">shape-outside</a> property, with possible modifications from the <a class="property" data-link-type="propdesc" href="https://svgwg.org/svg2-draft/text.html#ShapeMarginProperty" id="ref-for-ShapeMarginProperty">shape-margin</a> property. The shape defined by the <a class="property" data-link-type="propdesc" href="https://drafts.csswg.org/css-shapes-1/#propdef-shape-outside" id="ref-for-propdef-shape-outside③">shape-outside</a> and <a class="property" data-link-type="propdesc" href="https://svgwg.org/svg2-draft/text.html#ShapeMarginProperty" id="ref-for-ShapeMarginProperty①">shape-margin</a> properties changes the geometry of a float element’s <span>float area</span> and an exclusion element’s <span>exclusion area</span>.</p> <p>A shape can be declared with the <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside②">shape-inside</a> property, with possible modifications from the <a class="property" data-link-type="propdesc" href="#propdef-shape-padding" id="ref-for-propdef-shape-padding">shape-padding</a> property. The shape defined by the <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside③">shape-inside</a> and <a class="property" data-link-type="propdesc" href="#propdef-shape-padding" id="ref-for-propdef-shape-padding①">shape-padding</a> properties defines an <span>exclusion area</span> that contributes to the element’s <span>wrapping context</span>. The <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside④">shape-inside</a> property applies to all block-level elements.</p> <div class="example" id="example-a92e3cc7"> <a class="self-link" href="#example-a92e3cc7"></a> <p>The red box illustrates an exclusion element’s content box, which is unmodified and subject to normal CSS positioning (here absolute positioning).</p> <pre><code class="html"><style type="text/css"> .exclusion { wrap-flow: both; position: absolute; top: 25%; left: 25%; width: 50%; height: 50%; shape-outside: circle(50% at 50% 50%); border: 1px solid red; } </style> <div style=”position: relative;”> <div class=”exclusion”></div> Lorem ipsum dolor sit amet... </div> </code></pre> <p><img alt="Example rendering of circle shape and box model." class="singleImgExample" src="images/shapes_CSS2.1_MBP.png" style="max-width:40%"></p> </div> <h3 class="heading settled" data-level="8.1" id="shape-outside-property"><span class="secno">8.1. </span><span class="content"> The <a class="property" data-link-type="propdesc" href="https://drafts.csswg.org/css-shapes-1/#propdef-shape-outside" id="ref-for-propdef-shape-outside④">shape-outside</a> Property</span><a class="self-link" href="#shape-outside-property"></a></h3> <p>Add the final <a href="https://www.w3.org/TR/css-shapes/#shape-outside-property">level 1</a> section with the change that shape-outside applies to block-level elements and has an effect if the element is an exclusion.</p> <h3 class="heading settled" data-level="8.2" id="shape-inside-property"><span class="secno">8.2. </span><span class="content"> The <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside⑤">shape-inside</a> Property</span><a class="self-link" href="#shape-inside-property"></a></h3> <p>The <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside⑥">shape-inside</a> property adds one or more exclusion areas to the element’s wrapping context. This modifies the normal rectangular shape of the content area to a possibly non-rectangular wrapping area. The exclusion areas are defined by subtracting the shape from the element’s content area. Any part of the shape outside the element’s content area has no effect.</p> <table class="def propdef" data-link-for-hint="shape-inside"> <tbody> <tr> <th>Name: <td><dfn class="dfn-paneled css" data-dfn-type="property" data-export="" id="propdef-shape-inside">shape-inside</dfn> <tr class="value"> <th><a href="https://drafts.csswg.org/css-values/#value-defs">Value:</a> <td class="prod">auto <a data-link-type="grammar" href="https://drafts.csswg.org/css-values-4/#comb-one" id="ref-for-comb-one">|</a> outside-shape <a data-link-type="grammar" href="https://drafts.csswg.org/css-values-4/#comb-one" id="ref-for-comb-one①">|</a> [ <a class="production css" data-link-type="type" href="#typedef-basic-shape" id="ref-for-typedef-basic-shape"><basic-shape></a> <a data-link-type="grammar" href="https://drafts.csswg.org/css-values-4/#comb-any" id="ref-for-comb-any">||</a> shape-box ] <a data-link-type="grammar" href="https://drafts.csswg.org/css-values-4/#comb-one" id="ref-for-comb-one②">|</a> <a class="production css" data-link-type="type" href="https://drafts.csswg.org/css-images-3/#typedef-image" id="ref-for-typedef-image"><image></a> <a data-link-type="grammar" href="https://drafts.csswg.org/css-values-4/#comb-one" id="ref-for-comb-one③">|</a> display <tr> <th><a href="https://drafts.csswg.org/css-cascade/#initial-values">Initial:</a> <td>auto <tr> <th>Applies to: <td>block-level elements <tr> <th><a href="https://drafts.csswg.org/css-cascade/#inherited-property">Inherited:</a> <td>no <tr> <th><a href="https://drafts.csswg.org/css-values/#percentages">Percentages:</a> <td>n/a <tr> <th>Media: <td>visual <tr> <th><a href="https://drafts.csswg.org/css-cascade/#computed">Computed value:</a> <td>computed lengths for <a class="production css" data-link-type="type" href="#typedef-basic-shape" id="ref-for-typedef-basic-shape①"><basic-shape></a>, the absolute URI for <a class="production css" data-link-type="type" href="#typedef-uri" id="ref-for-typedef-uri"><uri></a>, otherwise as specified <tr> <th>Canonical order: <td>per grammar <tr> <th><a href="https://drafts.csswg.org/css-transitions/#animatable-properties">Animatable:</a> <td>as specified for <a class="production css" data-link-type="type" href="#typedef-basic-shape" id="ref-for-typedef-basic-shape②"><basic-shape></a>, otherwise no </table> <p>The values of this property have the following meanings:</p> <dl> <dt><dfn class="dfn-paneled css" data-dfn-for="shape-inside" data-dfn-type="value" data-export="" id="valdef-shape-inside-auto"><a class="css" data-link-type="maybe" href="#valdef-shape-inside-auto" id="ref-for-valdef-shape-inside-auto">auto</a></dfn> <dd> The shape is computed based on the content box of the element. </dl> <dl> <dt><dfn class="dfn-paneled css" data-dfn-for="shape-inside" data-dfn-type="value" data-export="" id="valdef-shape-inside-outside-shape"><a class="css" data-link-type="maybe" href="#valdef-shape-inside-outside-shape" id="ref-for-valdef-shape-inside-outside-shape">outside-shape</a></dfn> <dd> The shape is computed based on the shape defined by the shape-outside and shape-margin properties. </dl> <dl> <dt><dfn class="dfn-paneled css" data-dfn-type="type" data-export="" id="typedef-basic-shape"><basic-shape></dfn> <dd> The shape is computed based on the values of one of <a class="css" data-link-type="maybe" href="https://drafts.csswg.org/css-shapes-1/#funcdef-inset" id="ref-for-funcdef-inset">inset()</a>, <a class="css" data-link-type="maybe" href="https://drafts.csswg.org/css-shapes-1/#funcdef-circle" id="ref-for-funcdef-circle">circle()</a>, <a class="css" data-link-type="maybe" href="https://drafts.csswg.org/css-shapes-1/#funcdef-ellipse" id="ref-for-funcdef-ellipse">ellipse()</a> or <a class="css" data-link-type="maybe" href="https://drafts.csswg.org/css-shapes-1/#funcdef-polygon" id="ref-for-funcdef-polygon">polygon()</a>. </dl> <dl> <dt><dfn class="dfn-paneled css" data-dfn-type="type" data-export="" id="typedef-uri"><uri></dfn> <dd> If the <uri> references an SVG shape element, that element defines the shape. Otherwise, if the <uri> references an image, the shape is extracted and computed based on the alpha channel of the specified image. <p>If the <uri> does not reference an SVG shape element or an image, the effect is as if the value <a class="css" data-link-type="maybe" href="#valdef-shape-inside-auto" id="ref-for-valdef-shape-inside-auto①">auto</a> had been specified.</p> </dl> <dl> <dt><dfn class="dfn-paneled css" data-dfn-for="shape-inside" data-dfn-type="value" data-export="" id="valdef-shape-inside-display"><a class="css" data-link-type="maybe" href="#valdef-shape-inside-display" id="ref-for-valdef-shape-inside-display">display</a></dfn> <dd> The shape is computed based on the shape of the display as described in <a href="https://drafts.csswg.org/css-round-display">css-round-display</a>. </dl> <p>The <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside⑦">shape-inside</a> property applies to floats.</p> <p>The <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside⑧">shape-inside</a> property may not apply on some elements such as elements with a computed <a class="property" data-link-type="propdesc" href="https://drafts.csswg.org/css-display-3/#propdef-display" id="ref-for-propdef-display">display</a> value of <a class="css" data-link-type="maybe" href="https://drafts.csswg.org/css-display-3/#valdef-display-table" id="ref-for-valdef-display-table">table</a>.</p> <div class="figure"> <img alt="Content flowing with and without a shape-inside" src="images/shape-inside-content.png"> <p class="caption">Effect of shape-inside on inline content.</p> </div> <p>Overflow content avoids the exclusion area(s) added by <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside⑨">shape-inside</a> and <a class="property" data-link-type="propdesc" href="#propdef-shape-padding" id="ref-for-propdef-shape-padding②">shape-padding</a> (as well as any other exclusion areas in the element’s wrapping context). In other words, overflow continues outside the rectangular bounds of the element.</p> <p></p> <div class="figure"> <img alt="Overflow interacting with rounded rect" src="images/rounded-rect-overflow.png" style="display:inline-block;vertical-align:top"> <img alt="Overflow interacting with ellipse" src="images/ellipse-overflow.png" style="display:inline-block;vertical-align:top"> <p class="caption"> Overflow interacting with exclusion areas defined by <a class="property" data-link-type="propdesc" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside①⓪">shape-inside</a> and <a class="property" data-link-type="propdesc" href="#propdef-shape-padding" id="ref-for-propdef-shape-padding③">shape-padding</a>. </p> </div> <p class="issue" id="issue-048939a8"><a class="self-link" href="#issue-048939a8"></a> improve the illustration above, using text to show overflow instead of greeked boxes.</p> <p>When a shape-inside has a definite size (no percentages used in the shape’s definition) an auto-sized element should use the shape as a constraint in determining its maximum size.</p> <h3 class="heading settled" data-level="8.3" id="shape-image-threshold-property"><span class="secno">8.3. </span><span class="content"> The shape-image-threshold Property</span><a class="self-link" href="#shape-image-threshold-property"></a></h3> <p>Add the final <a href="https://www.w3.org/TR/css-shapes/#shape-image-threshold-property">level 1</a> section with the change that it applies to both <span>shape-inside</span> and <span>shape-outside</span>.</p> <h3 class="heading settled" data-level="8.4" id="shape-image-source-type-property"><span class="secno">8.4. </span><span class="content"> The shape-image-source-type Property</span><a class="self-link" href="#shape-image-source-type-property"></a></h3> <p>Should we add an alpha/luminance switch to determine which values we use from the shape-image source? This could just be a keyword on the shape-image-threshold property. Whatever we go with should be compatible with the alpha/luminance switch from mask sources.</p> <h3 class="heading settled" data-level="8.5" id="shape-margin-property"><span class="secno">8.5. </span><span class="content"> The <a class="property" data-link-type="propdesc" href="https://svgwg.org/svg2-draft/text.html#ShapeMarginProperty" id="ref-for-ShapeMarginProperty②">shape-margin</a> property</span><a class="self-link" href="#shape-margin-property"></a></h3> <p>Add the final <a href="https://www.w3.org/TR/css-shapes/#shape-margin-property">level 1</a> section with the change that it applies to exclusions.</p> <h3 class="heading settled" data-level="8.6" id="shape-padding-property"><span class="secno">8.6. </span><span class="content"> The <a class="property" data-link-type="propdesc" href="#propdef-shape-padding" id="ref-for-propdef-shape-padding④">shape-padding</a> Property</span><a class="self-link" href="#shape-padding-property"></a></h3> <p>The <a class="property" data-link-type="propdesc" href="#propdef-shape-padding" id="ref-for-propdef-shape-padding⑤">shape-padding</a> property adds padding to a shape-inside. This defines a new shape where every point is the specified distance from the shape-inside. This property takes on positive values only.</p> <table class="def propdef" data-link-for-hint="shape-padding"> <tbody> <tr> <th>Name: <td><dfn class="dfn-paneled css" data-dfn-type="property" data-export="" id="propdef-shape-padding">shape-padding</dfn> <tr class="value"> <th><a href="https://drafts.csswg.org/css-values/#value-defs">Value:</a> <td class="prod"><a class="production css" data-link-type="type" href="https://drafts.csswg.org/css-values-3/#length-value" id="ref-for-length-value" title="Expands to: em | vb | ch | cm | vh | vi | vw | ex | in | ic | pt | px | lh | pc | rem | rlh | vmax | advance measure | vmin | mm | cap | q"><length></a> <tr> <th><a href="https://drafts.csswg.org/css-cascade/#initial-values">Initial:</a> <td>none <tr> <th>Applies to: <td>block-level elements <tr> <th><a href="https://drafts.csswg.org/css-cascade/#inherited-property">Inherited:</a> <td>no <tr> <th><a href="https://drafts.csswg.org/css-values/#percentages">Percentages:</a> <td>n/a <tr> <th>Media: <td>visual <tr> <th><a href="https://drafts.csswg.org/css-cascade/#computed">Computed value:</a> <td>the absolute length <tr> <th>Canonical order: <td>per grammar <tr> <th><a href="https://drafts.csswg.org/css-transitions/#animatable-properties">Animatable:</a> <td>as <a href="https://www.w3.org/TR/css3-transitions/#animtype-lpcalc">length, percentage, or calc</a> </table> <div class="example" id="example-db9f3322"> <a class="self-link" href="#example-db9f3322"></a> <p>A <a class="property" data-link-type="propdesc" href="#propdef-shape-padding" id="ref-for-propdef-shape-padding⑥">shape-padding</a> creating an offset from a circlular shape-inside. The light blue rectangles represent inline content affected by the shape created by the padding.</p> <img alt="Example of a shape-padding offset" src="images/shape-padding.png"> </div> <p class="note" role="note"><span>Note:</span> The <a class="property" data-link-type="propdesc" href="#propdef-shape-padding" id="ref-for-propdef-shape-padding⑦">shape-padding</a> property only affects layout of content inside the element it applies to while the <a class="property" data-link-type="propdesc" href="https://svgwg.org/svg2-draft/text.html#ShapeMarginProperty" id="ref-for-ShapeMarginProperty③">shape-margin</a> property only affects layout of content outside the element.</p> </main> <h2 class="no-ref no-num heading settled" id="conformance"><span class="content"> Conformance</span><a class="self-link" href="#conformance"></a></h2> <h3 class="heading settled" id="document-conventions"><span class="content"> Document conventions</span><a class="self-link" href="#document-conventions"></a></h3> <p>Conformance requirements are expressed with a combination of descriptive assertions and RFC 2119 terminology. The key words “MUST”, “MUST NOT”, “REQUIRED”, “SHALL”, “SHALL NOT”, “SHOULD”, “SHOULD NOT”, “RECOMMENDED”, “MAY”, and “OPTIONAL” in the normative parts of this document are to be interpreted as described in RFC 2119. However, for readability, these words do not appear in all uppercase letters in this specification. </p> <p>All of the text of this specification is normative except sections explicitly marked as non-normative, examples, and notes. <a data-link-type="biblio" href="#biblio-rfc2119">[RFC2119]</a> </p> <p>Examples in this specification are introduced with the words “for example” or are set apart from the normative text with <code>class="example"</code>, like this: </p> <div class="example" id="example-52448c84"> <a class="self-link" href="#example-52448c84"></a> <p>This is an example of an informative example. </p> </div> <p>Informative notes begin with the word “Note” and are set apart from the normative text with <code>class="note"</code>, like this: </p> <p class="note" role="note">Note, this is an informative note. </p> <p>Advisements are normative sections styled to evoke special attention and are set apart from other normative text with <code><strong class="advisement"></code>, like this: <strong class="advisement"> UAs MUST provide an accessible alternative. </strong> </p> <h3 class="heading settled" id="conform-classes"><span class="content"> Conformance classes</span><a class="self-link" href="#conform-classes"></a></h3> <p>Conformance to this specification is defined for three conformance classes: </p> <dl> <dt>style sheet <dd>A <a href="http://www.w3.org/TR/CSS2/conform.html#style-sheet">CSS style sheet</a>. <dt>renderer <dd>A <a href="http://www.w3.org/TR/CSS2/conform.html#user-agent">UA</a> that interprets the semantics of a style sheet and renders documents that use them. <dt>authoring tool <dd>A <a href="http://www.w3.org/TR/CSS2/conform.html#user-agent">UA</a> that writes a style sheet. </dl> <p>A style sheet is conformant to this specification if all of its statements that use syntax defined in this module are valid according to the generic CSS grammar and the individual grammars of each feature defined in this module. </p> <p>A renderer is conformant to this specification if, in addition to interpreting the style sheet as defined by the appropriate specifications, it supports all the features defined by this specification by parsing them correctly and rendering the document accordingly. However, the inability of a UA to correctly render a document due to limitations of the device does not make the UA non-conformant. (For example, a UA is not required to render color on a monochrome monitor.) </p> <p>An authoring tool is conformant to this specification if it writes style sheets that are syntactically correct according to the generic CSS grammar and the individual grammars of each feature in this module, and meet all other conformance requirements of style sheets as described in this module. </p> <h3 class="heading settled" id="conform-responsible"><span class="content"> Requirements for Responsible Implementation of CSS</span><a class="self-link" href="#conform-responsible"></a></h3> <p>The following sections define several conformance requirements for implementing CSS responsibly, in a way that promotes interoperability in the present and future. </p> <h4 class="heading settled" id="conform-partial"><span class="content"> Partial Implementations</span><a class="self-link" href="#conform-partial"></a></h4> <p>So that authors can exploit the forward-compatible parsing rules to assign fallback values, <strong>CSS renderers <em>must</em> treat as invalid (and <a href="http://www.w3.org/TR/CSS2/conform.html#ignore">ignore as appropriate</a>) any at-rules, properties, property values, keywords, and other syntactic constructs for which they have no usable level of support</strong>. In particular, user agents <em>must not</em> selectively ignore unsupported property values and honor supported values in a single multi-value property declaration: if any value is considered invalid (as unsupported values must be), CSS requires that the entire declaration be ignored. </p> <h4 class="heading settled" id="conform-future-proofing"><span class="content"> Implementations of Unstable and Proprietary Features</span><a class="self-link" href="#conform-future-proofing"></a></h4> <p>To avoid clashes with future stable CSS features, the CSSWG recommends <a href="http://www.w3.org/TR/CSS/#future-proofing">following best practices</a> for the implementation of <a href="http://www.w3.org/TR/CSS/#unstable">unstable</a> features and <a href="http://www.w3.org/TR/CSS/#proprietary-extension">proprietary extensions</a> to CSS. </p> <h4 class="heading settled" id="conform-testing"><span class="content"> Implementations of CR-level Features</span><a class="self-link" href="#conform-testing"></a></h4> <p>Once a specification reaches the Candidate Recommendation stage, implementers should release an <a data-link-type="dfn" href="http://www.w3.org/TR/CSS/#vendor-prefix">unprefixed</a> implementation of any CR-level feature they can demonstrate to be correctly implemented according to spec, and should avoid exposing a prefixed variant of that feature. </p> <p>To establish and maintain the interoperability of CSS across implementations, the CSS Working Group requests that non-experimental CSS renderers submit an implementation report (and, if necessary, the testcases used for that implementation report) to the W3C before releasing an unprefixed implementation of any CSS features. Testcases submitted to W3C are subject to review and correction by the CSS Working Group. </p> <p> Further information on submitting testcases and implementation reports can be found from on the CSS Working Group’s website at <a href="http://www.w3.org/Style/CSS/Test/">http://www.w3.org/Style/CSS/Test/</a>. Questions should be directed to the <a href="http://lists.w3.org/Archives/Public/public-css-testsuite">public-css-testsuite@w3.org</a> mailing list. <script src="https://www.w3.org/scripts/TR/2016/fixup.js"></script> </p> <h2 class="no-num no-ref heading settled" id="index"><span class="content">Index</span><a class="self-link" href="#index"></a></h2> <h3 class="no-num no-ref heading settled" id="index-defined-here"><span class="content">Terms defined by this specification</span><a class="self-link" href="#index-defined-here"></a></h3> <ul class="index"> <li><a href="#valdef-shape-inside-auto">auto</a><span>, in §8.2</span> <li><a href="#typedef-basic-shape"><basic-shape></a><span>, in §8.2</span> <li><a href="#content-area">Content area</a><span>, in §2</span> <li><a href="#valdef-shape-inside-display">display</a><span>, in §8.2</span> <li><a href="#exclusion-area">Exclusion area</a><span>, in §2</span> <li><a href="#typedef-fill-rule"><fill-rule></a><span>, in §4.1</span> <li><a href="#float-area">Float area</a><span>, in §2</span> <li><a href="#valdef-shape-inside-outside-shape">outside-shape</a><span>, in §8.2</span> <li><a href="#funcdef-path">path()</a><span>, in §4.1</span> <li><a href="#propdef-shape-inside">shape-inside</a><span>, in §8.2</span> <li><a href="#propdef-shape-padding">shape-padding</a><span>, in §8.6</span> <li><a href="#typedef-uri"><uri></a><span>, in §8.2</span> </ul> <h3 class="no-num no-ref heading settled" id="index-defined-elsewhere"><span class="content">Terms defined by reference</span><a class="self-link" href="#index-defined-elsewhere"></a></h3> <ul class="index"> <li> <a data-link-type="biblio">[css-display-3]</a> defines the following terms: <ul> <li><a href="https://drafts.csswg.org/css-display-3/#propdef-display">display</a> <li><a href="https://drafts.csswg.org/css-display-3/#valdef-display-table">table</a> </ul> <li> <a data-link-type="biblio">[CSS-SHAPES]</a> defines the following terms: <ul> <li><a href="https://drafts.csswg.org/css-shapes-1/#funcdef-circle">circle()</a> <li><a href="https://drafts.csswg.org/css-shapes-1/#funcdef-ellipse">ellipse()</a> <li><a href="https://drafts.csswg.org/css-shapes-1/#funcdef-inset">inset()</a> <li><a href="https://drafts.csswg.org/css-shapes-1/#funcdef-polygon">polygon()</a> <li><a href="https://drafts.csswg.org/css-shapes-1/#propdef-shape-outside">shape-outside</a> </ul> <li> <a data-link-type="biblio">[css-values-3]</a> defines the following terms: <ul> <li><a href="https://drafts.csswg.org/css-values-3/#length-value"><length></a> <li><a href="https://drafts.csswg.org/css-values-3/#string-value"><string></a> <li><a href="https://drafts.csswg.org/css-values-4/#comb-one">|</a> <li><a href="https://drafts.csswg.org/css-values-4/#comb-any">||</a> </ul> <li> <a data-link-type="biblio">[css3-images]</a> defines the following terms: <ul> <li><a href="https://drafts.csswg.org/css-images-3/#typedef-image"><image></a> </ul> <li> <a data-link-type="biblio">[fill-stroke-3]</a> defines the following terms: <ul> <li><a href="https://drafts.fxtf.org/fill-stroke-3/#valdef-fill-rule-evenodd">evenodd</a> <li><a href="https://drafts.fxtf.org/fill-stroke-3/#valdef-fill-rule-nonzero">nonzero</a> </ul> <li> <a data-link-type="biblio">[SVG2]</a> defines the following terms: <ul> <li><a href="https://svgwg.org/svg2-draft/text.html#ShapeMarginProperty">shape-margin</a> </ul> </ul> <h2 class="no-num no-ref heading settled" id="references"><span class="content">References</span><a class="self-link" href="#references"></a></h2> <h3 class="no-num no-ref heading settled" id="normative"><span class="content">Normative References</span><a class="self-link" href="#normative"></a></h3> <dl> <dt id="biblio-css-display-3">[CSS-DISPLAY-3] <dd>Elika Etemad. <a href="https://www.w3.org/TR/css-display-3/">CSS Display Module Level 3</a>. 20 July 2017. WD. URL: <a href="https://www.w3.org/TR/css-display-3/">https://www.w3.org/TR/css-display-3/</a> <dt id="biblio-css-shapes">[CSS-SHAPES] <dd>Vincent Hardy; Rossen Atanassov; Alan Stearns. <a href="https://www.w3.org/TR/css-shapes-1/">CSS Shapes Module Level 1</a>. 20 March 2014. CR. URL: <a href="https://www.w3.org/TR/css-shapes-1/">https://www.w3.org/TR/css-shapes-1/</a> <dt id="biblio-css-values-3">[CSS-VALUES-3] <dd>Tab Atkins Jr.; Elika Etemad. <a href="https://www.w3.org/TR/css-values-3/">CSS Values and Units Module Level 3</a>. 29 September 2016. CR. URL: <a href="https://www.w3.org/TR/css-values-3/">https://www.w3.org/TR/css-values-3/</a> <dt id="biblio-css3-images">[CSS3-IMAGES] <dd>Elika Etemad; Tab Atkins Jr.. <a href="https://www.w3.org/TR/css3-images/">CSS Image Values and Replaced Content Module Level 3</a>. 17 April 2012. CR. URL: <a href="https://www.w3.org/TR/css3-images/">https://www.w3.org/TR/css3-images/</a> <dt id="biblio-fill-stroke-3">[FILL-STROKE-3] <dd>Elika Etemad; Tab Atkins Jr.. <a href="https://www.w3.org/TR/fill-stroke-3/">CSS Fill and Stroke Module Level 3</a>. 13 April 2017. WD. URL: <a href="https://www.w3.org/TR/fill-stroke-3/">https://www.w3.org/TR/fill-stroke-3/</a> <dt id="biblio-rfc2119">[RFC2119] <dd>S. Bradner. <a href="https://tools.ietf.org/html/rfc2119">Key words for use in RFCs to Indicate Requirement Levels</a>. March 1997. Best Current Practice. URL: <a href="https://tools.ietf.org/html/rfc2119">https://tools.ietf.org/html/rfc2119</a> <dt id="biblio-svg2">[SVG2] <dd>Nikos Andronikos; et al. <a href="https://www.w3.org/TR/SVG2/">Scalable Vector Graphics (SVG) 2</a>. 15 September 2016. CR. URL: <a href="https://www.w3.org/TR/SVG2/">https://www.w3.org/TR/SVG2/</a> </dl> <h2 class="no-num no-ref heading settled" id="property-index"><span class="content">Property Index</span><a class="self-link" href="#property-index"></a></h2> <div class="big-element-wrapper"> <table class="index"> <thead> <tr> <th scope="col">Name <th scope="col">Value <th scope="col">Initial <th scope="col">Applies to <th scope="col">Inh. <th scope="col">%ages <th scope="col">Media <th scope="col">Animatable <th scope="col">Canonical order <th scope="col">Computed value <tbody> <tr> <th scope="row"><a class="css" data-link-type="property" href="#propdef-shape-inside" id="ref-for-propdef-shape-inside①①">shape-inside</a> <td>auto | outside-shape | [ <basic-shape> || shape-box ] | <image> | display <td>auto <td>block-level elements <td>no <td>n/a <td>visual <td>as specified for <basic-shape>, otherwise no <td>per grammar <td>computed lengths for <basic-shape>, the absolute URI for <uri>, otherwise as specified <tr> <th scope="row"><a class="css" data-link-type="property" href="#propdef-shape-padding" id="ref-for-propdef-shape-padding⑧">shape-padding</a> <td><length> <td>none <td>block-level elements <td>no <td>n/a <td>visual <td>as length, percentage, or calc <td>per grammar <td>the absolute length </table> </div> <h2 class="no-num no-ref heading settled" id="issues-index"><span class="content">Issues Index</span><a class="self-link" href="#issues-index"></a></h2> <div style="counter-reset:issue"> <div class="issue"> One <a href="https://www.w3.org/Bugs/Public/show_bug.cgi?id=16716">suggestion</a> is to define a shape based on an element’s rendered content. This could have security implications.<a href="#issue-d7f8356c"> ↵ </a></div> <div class="issue"> Another <a href="http://lists.w3.org/Archives/Public/www-style/2014Mar/0120.html">suggestion</a> is to add something to an image() function that determines the relevant pixels to use (both for defining a shape and for display).<a href="#issue-aa32ab08"> ↵ </a></div> <div class="issue"> improve the illustration above, using text to show overflow instead of greeked boxes.<a href="#issue-048939a8"> ↵ </a></div> </div> <aside class="dfn-panel" data-for="typedef-fill-rule"> <b><a href="#typedef-fill-rule">#typedef-fill-rule</a></b><b>Referenced in:</b> <ul> <li><a href="#ref-for-typedef-fill-rule">4.1. Supported Shapes</a> <a href="#ref-for-typedef-fill-rule①">(2)</a> </ul> </aside> <aside class="dfn-panel" data-for="propdef-shape-inside"> <b><a href="#propdef-shape-inside">#propdef-shape-inside</a></b><b>Referenced in:</b> <ul> <li><a href="#ref-for-propdef-shape-inside">1. Introduction</a> <li><a href="#ref-for-propdef-shape-inside①">2. Terminology</a> <li><a href="#ref-for-propdef-shape-inside②">8. Declaring Shapes</a> <a href="#ref-for-propdef-shape-inside③">(2)</a> <a href="#ref-for-propdef-shape-inside④">(3)</a> <li><a href="#ref-for-propdef-shape-inside⑤">8.2. The shape-inside Property</a> <a href="#ref-for-propdef-shape-inside⑥">(2)</a> <a href="#ref-for-propdef-shape-inside⑦">(3)</a> <a href="#ref-for-propdef-shape-inside⑧">(4)</a> <a href="#ref-for-propdef-shape-inside⑨">(5)</a> <a href="#ref-for-propdef-shape-inside①⓪">(6)</a> </ul> </aside> <aside class="dfn-panel" data-for="valdef-shape-inside-auto"> <b><a href="#valdef-shape-inside-auto">#valdef-shape-inside-auto</a></b><b>Referenced in:</b> <ul> <li><a href="#ref-for-valdef-shape-inside-auto">8.2. The shape-inside Property</a> <a href="#ref-for-valdef-shape-inside-auto①">(2)</a> </ul> </aside> <aside class="dfn-panel" data-for="valdef-shape-inside-outside-shape"> <b><a href="#valdef-shape-inside-outside-shape">#valdef-shape-inside-outside-shape</a></b><b>Referenced in:</b> <ul> <li><a href="#ref-for-valdef-shape-inside-outside-shape">8.2. The shape-inside Property</a> </ul> </aside> <aside class="dfn-panel" data-for="typedef-basic-shape"> <b><a href="#typedef-basic-shape">#typedef-basic-shape</a></b><b>Referenced in:</b> <ul> <li><a href="#ref-for-typedef-basic-shape">8.2. The shape-inside Property</a> <a href="#ref-for-typedef-basic-shape①">(2)</a> <a href="#ref-for-typedef-basic-shape②">(3)</a> </ul> </aside> <aside class="dfn-panel" data-for="typedef-uri"> <b><a href="#typedef-uri">#typedef-uri</a></b><b>Referenced in:</b> <ul> <li><a href="#ref-for-typedef-uri">8.2. The shape-inside Property</a> </ul> </aside> <aside class="dfn-panel" data-for="valdef-shape-inside-display"> <b><a href="#valdef-shape-inside-display">#valdef-shape-inside-display</a></b><b>Referenced in:</b> <ul> <li><a href="#ref-for-valdef-shape-inside-display">8.2. The shape-inside Property</a> </ul> </aside> <aside class="dfn-panel" data-for="propdef-shape-padding"> <b><a href="#propdef-shape-padding">#propdef-shape-padding</a></b><b>Referenced in:</b> <ul> <li><a href="#ref-for-propdef-shape-padding">8. Declaring Shapes</a> <a href="#ref-for-propdef-shape-padding①">(2)</a> <li><a href="#ref-for-propdef-shape-padding②">8.2. The shape-inside Property</a> <a href="#ref-for-propdef-shape-padding③">(2)</a> <li><a href="#ref-for-propdef-shape-padding④">8.6. The shape-padding Property</a> <a href="#ref-for-propdef-shape-padding⑤">(2)</a> <a href="#ref-for-propdef-shape-padding⑥">(3)</a> <a href="#ref-for-propdef-shape-padding⑦">(4)</a> </ul> </aside> <script>/* script-dfn-panel */ document.body.addEventListener("click", function(e) { var queryAll = function(sel) { return [].slice.call(document.querySelectorAll(sel)); } // Find the dfn element or panel, if any, that was clicked on. var el = e.target; var target; var hitALink = false; while(el.parentElement) { if(el.tagName == "A") { // Clicking on a link in a <dfn> shouldn't summon the panel hitALink = true; } if(el.classList.contains("dfn-paneled")) { target = "dfn"; break; } if(el.classList.contains("dfn-panel")) { target = "dfn-panel"; break; } el = el.parentElement; } if(target != "dfn-panel") { // Turn off any currently "on" or "activated" panels. queryAll(".dfn-panel.on, .dfn-panel.activated").forEach(function(el){ el.classList.remove("on"); el.classList.remove("activated"); }); } if(target == "dfn" && !hitALink) { // open the panel var dfnPanel = document.querySelector(".dfn-panel[data-for='" + el.id + "']"); if(dfnPanel) { console.log(dfnPanel); dfnPanel.classList.add("on"); var rect = el.getBoundingClientRect(); dfnPanel.style.left = window.scrollX + rect.right + 5 + "px"; dfnPanel.style.top = window.scrollY + rect.top + "px"; var panelRect = dfnPanel.getBoundingClientRect(); var panelWidth = panelRect.right - panelRect.left; if(panelRect.right > document.body.scrollWidth && (rect.left - (panelWidth + 5)) > 0) { // Reposition, because the panel is overflowing dfnPanel.style.left = window.scrollX + rect.left - (panelWidth + 5) + "px"; } } else { console.log("Couldn't find .dfn-panel[data-for='" + el.id + "']"); } } else if(target == "dfn-panel") { // Switch it to "activated" state, which pins it. el.classList.add("activated"); el.style.left = null; el.style.top = null; } }); </script><a class='link-error' href='/date/2017-10-25T17:47:30/bikeshed/css-shapes-2/' id='generator' title='Bikeshed Link Errors'><svg height='24' viewbox='0 0 100 100' width='24'><g stroke="blue" stroke-width="6" fill="none"><path fill="blue" stroke="none" d="M 5 95 L 5 35 L 50 10 L 50 95"/><path d="M 1 37 L 54 8"/><path fill="blue" stroke="none" d="M 1 40 v -6 l 60 -32 v 6 z" /><circle cx="75" cy="79" r="15" /><circle fill="blue" stroke="none" cx="75" cy="79" r="4" /><path d="M 75 79 L 65 49 L 55 49" /><path d="M 67 55 L 48 69" /></g></svg></a>